IN DEMAND: Barcelona and Manchester United are both interested in signing Juan Cuadrado [GETTY]

Barca and United are both keen on signing the Colombia World Cup star before the close of the summer transfer window.

Fiorentina are demanding £40m to allow Cuadrado to leave, although Spanish newspaper MARCA sensationally claimed last week that the winger is out of contract at the end of the current season.

This is despite the belief that the 26-year-old is contracted to the Viola until 2017.

When asked about a potential swoop for Cuadrado, Enrique said: "The market isn't closed yet."

“At times it can happen that we like players, we negotiate for them and the other clubs aren't always prepared to sell them”

Barcelona manager Luis Enrique

"I won't talk about Cuadrado because he is not my player," he added.

"Having said that, our market isn't closed yet. At times it can happen that we like players, we negotiate for them and the other clubs aren't always prepared to sell them."

New United boss Louis van Gaal is desperate to strengthen his squad before the September 1 deadline having seen his side slump to an opening day home defeat to Swansea City yesterday.

Earlier this month, the Dutchman refused to reveal any major details over his interest in Cuadrado for fear his value would increase.

It is understood Van Gaal has instructed United executive vice-chairman Ed Woodward to sign at least one of his major targets with Cuadrado, Real Madrid winger Angel Di Maria and Juventus midfielder Arturo Vidal top of his wish list.